Husqvarna 122 HD60 Workshop Manual page 48

7
46
Crankshaft and crankcase
Check the crank bearing.
Assembly
Mount the bearings in the crankcase
halves.
Fit the sealing rings in the crankcase
halves.
Fit the crankshaft in the crankcase half of
the fl ywheel side.
Fit the gasket to the clutch-side of the
crankcase half.
Slide the crankcase half into place over
the crankshaft.
Pull out the 3 crankcase screws.
Fit the sealing ring and protect it with the
577 90 21-01 assembly sleeve placed on
the shaft pin.
577 90 21-01
Check the crank bearing. The connecting
rod shall not have any radial play (up and
down).
It should, however, have axial play, in
order to ensure good lubrication of the
crank bearing among other things.
Assembly
Mount the bearings in the crankcase
halves.
Heat the crankcase halves to approx.
120°C using a hot air gun. Put the ball-
bearings in position.
Use a suitable punch and hammer, if
needed.
Make sure the ball bearings rest against
the circlip.
Fit the sealing ring in the crankcase half
on the fl ywheel side with the help of a
suitable punch.
Turn the sealing ring so the abraded edge
faces inwards.
Fit the crankshaft in the crankcase half on
the fl ywheel side. Lubricate the stub axle
with a few drops of oil and carefully slide
the crankshaft into the bearing.
Fit the gasket to the clutch-side of the
crankcase half.
Lubricate the crankshaft pin with a few
drops of oil and slide the crankcase half
on the clutch side into position.
Tighten the 3 crankcase screws in turns a
little at a time.
Check that the crankshaft can rotate
easily.
Place the assembly sleeve (577 90 21-
01) on the shaft pin on the clutch side to
protect the sealing ring when it is fi tted.
Lubricate the shaft pin with oil and fi t the
sealing ring using a suitable punch. The
metal cover must face outwards.